Door handle assembly



' May 6; 1941; E. s. SIMPSON DOOR HANDLE ASSEMBLY Filed July 5. 1938 ssheets-sheet 1 INVENTOR Emory 62mm 022,550 BY 7 ATTORNEY.$

May 6, 1941.

E. G. SIMPSON noon HANDLE ASSEMBLY Filed July 5. 1938 3 Sheets-Sheet 2INVENTOR. Ema; 67am; 770,550" BY ATTORNEY.5

May 6,1941. E. s. SIMPSON noon HANDLE ASSEMBLY s Sheets-Sheet 3 FiledJuly 5. 1938 i NVEN TOR.

i'mo ry 6267222 ivy ism ATTORNEY.$

this position.

Patented May 6, 1941 UNITED j STATES PATENT OFFICE DOOR HANDLE ASSEMBLYEmory Glenn Simpson. Detroit, Mich. assignor to Ternstedt ManufacturingCompany, Detroit,

Micln, a corporation of Michigan Application July 5, 1938, Serial No.217,447

.3 Claims.

In an automobile the remote inside door handle is usually located whereit is readily accessiblefor operation by a youngster. Many accidentshave occurred by youngsters operating the remote inside door handle tounlatch and open the vehicle door whilethe vehicle was in motion. Otheraccidents have occurred by occupants of the car unintentionally strikingor actuating the remote inside door handle to retract the bolt It isalso an object of this invention to produce a remote inside door handlewhich, upon being released after retracting the bolt, upon returning,tonormal position automatically locks itself in This invention alsocontemplates an inside door 1 handle provided with a latch for latchingit in normal position. which latch at the option of the operator can berendered either effective or inefiective to latch the inside doorhandle.

I Inthe drawings:

. Fig. 1 is a fragmentary inside elevation of an automobile door showingthe inside door handle and detent therefor.

' Fig; 2 is an enlarged perspective view of-the inside door handleanddetent therefor with the handle in latched position.

Fig. 3 is a; perspective view of the detent inoperative.

. Fig. 4 is a detail showing the mounting of. the handle on the door. I

I'flg. Bis a section along the line 5-8 of Fig. 2.

Fig. 6 is a section along the line 0-4 of Fig. 3.

Fig. '7 is a detail of the detent for the inside door handle showing thedetent effective to latch the inside door handle.

Fig. 8 is a detail of the detent showing the detent. ineffective tolatch the insidedoor handle.

Fig. 9 is a front elevational detail view of the detent showing itsposition when effective to latch the door handle.

Fig. 10 is a front elevational view of the detent corresponding to Fig.8 with the detent ineilective to latch the inside door handle.

rig. 11 is an exploded view of the detent.

Fig. 12 is a P rspe tive showing a modified tom oi detent.

the handle with tel-clockwise as viewed 12 showing the handle blocked.

Fig. 13 isa section along the line l3-.l3 of Fig.

Fig. 14 is a section similar to Fig. 13 showing the inside handlepassing over the detent.

Referring more particularly to the drawings there is shown an automobiledoor i provided with a latch comprising a. spring projected latch bolt 2and-an inside door handle 3 which is connected to the bolt 2 by a. draftlink 4. The belt 2 can be retracted by turning the handle 3 couninFig. 1. I

.The inside door handle 3 takes the form of a lever which is fixed on aspindle 5 which is journaled in the bearing support plate t (which isfixed to the lock board 1) and inthe bearing plate t which is fixed to.the plate 6. A lever 8 is also fixed on the spindle [to turn therewith.The lever B is connected to the draft link 4. The

torsion spring I0 is mounted upon the spindle 5.

One end of the spring is secured to the plate 8 as at I l and the otherend engages behind the mg 12 on the lever 8. Thus each time the handle Iis turned down (Fig. 1). the lever 9 turns clockwise (Fig. 4) and,acting through draft link I, retracts the bolt. This winds up torsionspring in. When the handle 3 is released, the

, torsion spring returns the handle to its normal position, Fig. 1. whenthe latch bolt 2 is projected by its spring in .the usual manner, thebolt acts through draft link 4 and lover I to -.-return the handle 3 tonormal position.

It is proposed to lock the handle 3 in its normal position so that itcannot be turned to retract the bolt preliminary to opening the door. Tothis end a-handle blocking device in the form of a detent is used. Thisdetent comprises a plunger ll slidably mounted in the'housing IS andbacked up by a coil spring It. The plunger I! is provided with ashoulder l'lwhich, when the plunger is projected,engages beneath thelever handle 3 to block it andprevent turning of.the

same to retract the bolt. The plunger I4 is retained within the housingI! by a pin ll, one

end of which slldably engages the housing in the T slot l9 and the otherend of, which fits in the recess 2c in the detent H. The pin it isprovided with a shoulder 2| and is backed up by a coil spring 22 whichyieldably projects the pin it into the T slot is.

As shown in Figs. 1, 2 and 5, the plunger detent I4 is projected and thehandle 3 is locked in its normal position with the latch bolt 2projected. To withdraw the latch bolt it is first necessary to press theplunger detent It inwardly against the coil spring It so that the Yposition.

' 1', to retract the bolt 2.

when the. handle .8 is released, either or both the bolt spring or thespring l swings the handle clockwise, Fig, 1, to its normal position. Asthe handle swings back to its normal position it automatically retractsand by the plungerdetent H. To this end the underi'ace 23 oi theshoulder portion ll of the plunger detent l4 takes the form of a portion01' a sphere, that is, the race 23 is rounded so that the handle I canreadily. cam back or retract the detent It as it swings back to normalposition. As soon as the handle passes the shoulder II, the spring Itagain projects the plunger detent H to lock the handle in its normalposition.

"I'he plunger detent ll optionally can be rendercd ineilective to blockthe handle I. To accomplish this. purpose the plunger detent II iss,24o,ses

over the detent, the spring I! projects the detent under the handle 3 toblock the same.

I claim:

1. In combination with a movable automobile door handle. a plungermember, a spring for pro- Jecting the same into the path of movement ofthe handle to block movement of the same, a housing member in which theplunger member is reciprocable and rotatable, a pin carried by one ofsaid members and a T slot in the other of said members, the said pinengaging the stem portion 0! the T slot in the retraction and proiectionoi the plunger member and the said pin interengaging one or the other ofthe cross poreither direction to retain the plunger member it, Afterbeing fully retracted within the housing II the detent I4 is then turnedeither clock- 'wise or counterclockwise a few degrees, as indicated inFigs. 3, 8 and 10. At this time the pin lI'passes out of the-stemportion of the T slot ll into one or the other of the notches 2| in theretracted. I

2. In combination with a swinging automobile inside door handle, adetent proiectabie into the pathot movement of the handle to blockmovecomprising a proiectable and retractable plunger T slot It. The pin'II is yieldably held in one or the other of the notches II by .thespring It Whenv the detent I is thus held in retracted position, thehandle I can be freely turned on its spindle and the detent isineffective .to block'th turning or the handle.

' 'To release the detent Ili'rom its ineflective.

position, Figs. 3- and 6, it is only necessary to turn it back to theposition indicated in Fig. 8

Y which :dlsengages the pin II from the notch 26 in the housing 15 andaligns the pin with the stem portion or the T slot il whereupon the.

spring I! again projects the detent to its eflective .In the modifiedform of the invention shown secured'by screws 83 to the lock board 84.The detent 30 is normally held in projected position by .the spring IIwhich is mounted on the pin '2.

In this form of the invention the detent can be applied to the face orthe door without neces sitatingj any cutting out oi! the inside doorpanel and lock board. As indicated in Figs. 12 and 13,

the handle cannot be turned down to retract the latch bolt because it isblocked by the detent ll.

member, a housing member for the same, a pin carried by one oi the saidmembers and a slot in which the said pin travels carried by the one oisaid members, saldslot having a portion extendrections whereby when thedetent plunger is retracted .the same can be turnedin either directionin its housing to interengage said transthe housing whenthe pin reachessuch transverse portions oi the slot.

3. Incombination with a movable automobile door handle, a cylindricalplunger member,'a

spring for protecting the same into the path. oi

- gaging the. longitudinal portion of the slot'in The detent 30 mustfirst be retracted into the casing 3| before the handle I can be turned.When the handle 3 is turned to retract the latch bolt and then released,it returns to its'normal position and is automatically dogged by thede-- tent ll. As shown in Fig. 14, as the handle reto retracted positionand after the handle passes member and the said pin intereng lng thelat- .eral portion or the said slot upon retraction of the plungermember and turning of the same to.

, plunger member being provided at its outer end turns to normalposition it cams the detent SI 1 when theplunger member is turned tolatch the same in its retracted position.

EMORY GLENN SIMPSON.

